diff --git a/petstore/petstoreassistant/src/main/java/com/chtrembl/petstoreassistant/PetStoreAssistantBot.java b/petstore/petstoreassistant/src/main/java/com/chtrembl/petstoreassistant/PetStoreAssistantBot.java
index c2028399..1b08ed4b 100644
--- a/petstore/petstoreassistant/src/main/java/com/chtrembl/petstoreassistant/PetStoreAssistantBot.java
+++ b/petstore/petstoreassistant/src/main/java/com/chtrembl/petstoreassistant/PetStoreAssistantBot.java
@@ -283,7 +283,7 @@ private CompletableFuture<Void> getDebug(TurnContext turnContext, String text, A
 
             if (text.contains("ball"))
             {
-                    String jsonString = "{\"type\":\"image\",\"id\":\"image-ball\",\"data\":{\"url\": \"https://raw.githubusercontent.com/chtrembl/staticcontent/master/dog-toys/ball.jpg?raw=true\",\"alt\": \"This is a ball\",\"alt\": \"This is a ball blah blah blah, This is a ball blah blah blah\"}}";
+                    String jsonString = "{\"type\":\"image\",\"id\":\"image-ball\",\"data\":{\"url\": \"https://raw.githubusercontent.com/chtrembl/staticcontent/master/dog-toys/ball.jpg?raw=true\",\"alt\": \"This is a ball\",\"caption\": \"This is a ball blah blah blah, This is a ball blah blah blah\"}}";
                     Attachment attachment = new Attachment();
                     attachment.setContentType("application/json");